Apparatus for feeding knitted goods made from rayon or artificial silk to tentering machines



I MADE FROM RAYON IAL SILK TO TENTEHING MACHINES Filed OCT,- ZO, 1930 June 28, F. TANDEL APPARATUS FOR FEEDING KNITTED GOODS OR ARTIFIC 3 SheetsSheet 1,864,681 DE FROM RAYON NES June 28, 1932. F. TANDEL v APPARATUS FOR FEEDING KNITTED GOODS MA -OR ARTIFICIAL SILK TO TENTERING' MACH]:

Filed Oct. 20. 1930 '3 Sheets-Sheet 2 APPARATUS FOR FEEDING KNITTED GOODS MADE FROM RAYON OR ARTIFICIAL SILK TO TENTERING MACHINES -Filed o1;.,zo, 1930 s Sheets-Sheet 3 June 28, I932. F, TANDEL 1,864,681

Patented June 28, 1932 UNITED STATES PATENT. OFFICE FRITZ TANDEL, 0F GHEMNITZ, GEE-MANY, AS SIGNOR TO C. G. HAUBOLD A. G., OF CHEM- NITZ, GERMANY, A JOINT-STOCK COMPANY OF GERMANY APPARATUS FOR FEEDING KNITTED GOODS MADE FROM RAYON 0R ARTIFICIAL SILK TO TEIbITEIiJIiI'G MACHINES Application filed October 20, 1930, Serial No. 490,065, and in Germany October 22, 1929.

My invention relates to improvements in the method of and apparatus for feeding knitted goods made from rayon or artificial silk to tentering machines, and the object of the improvements is to provide a method in which the edges .of such goods have a. correct action on the feeler controlling the side members of the' needle chain. With this object in view my invention consists in first rolling out the edges of the goods before they act on the feeler and thereafter passing the same through a stretching device. By thus putting the edges under tension their resistance is sufficient for properly acting on the feelers.

For the purpose of explaining the invention an example embodying the same has been I shown in the accompanying drawings in which the same reference characters have been used in all the views to indicate corresponding parts. In said drawings Fig. 1 is an elevation showing the feeding mechanism,

Fig. 2 is a top plan view of Fig. 1,

Fig. 3 is a sectional elevation on an enlarged scale taken on the line IIIIII of Fig. 2, and

Fig. 4 is a partial side elevation showing the conical pulleys controlling the operation of the stretching device.

In the example shown in the drawings the frame a of the apparatus comprises a transverse'member e on which the walls 9 for guiding the needle chains are rockingly supported by means of a roller 0 In the said walls 3 plates providing guides for needle chains 7 are mounted, which needlechains are trained on shafts y. This part of the apparatus is known in the art, and it has been described for example in the patent of United States No. 1.615,415 granted January 25, 1927 to Fritz Tandel,and I deem it not necessary to describe the same in detail. The object of the chains) is to have the fabric a attached to the needles thereof.

The fabric a passes from the intake sideof the apparatus over a drum I) mounted on .a' shaft 6 and rotated at uniform velocity, the

driving mechanism and the bearings of the shaftb having been omitted in Fig. 1. It will be understood that the bearings of the shaft are mounted on the frame of the machine. Before the fabric (1 gets on the needle chains its edges must be smoothed out and put under tension. For rolling out the edges an apparatus 0 is provided which is supported on a bracket 3 secured to the walls 3 and taking part in the movement thereof. The

construction of the apparatus 0 will be described hereinafter. After passing through the apparatus 0 the fabric passes with its edges along feeling devices d which are likeon a lever z. "The roller bears on the fabric a and it is supported on a table h located below the fabric. The roller e. is rotated in the manner to be described hereinafter in the direction of the arrow P its circumferential velocity being such that it has a stretching action on'the fabric a. By first rolling out the edges of the fabric by means of the apparatus c and thereafter putting the same under tension by means of the roller 6, its

edges have sufficient rigidity between the apparatus c and the roller 6 for safely acting on the feeling device d.

On a pivot bolt 9 projecting from the lever 71 a cylindrical brush 9 is mounted .which is adapted to press the fabric a into engagement with the needles of the chain f. The lever z is rockinglymounted on a shaft t supported on hearing members t At both ends the shaft t carries chain wheels 8 and 1- (Fig. 2). The chain wheel 8 is connected by a chain .9 with a chain wheel 8 secured to a shaft e, and the chain wheel 1- is connected by a chain 1' with a chain wheel 7' secured to av shaft T The said shaft is mounted on levers r jointed at 1' to a hearing member 1". The levers r are connected with each other by a rod 1' and they are acted upon by a spring 7*. On the bearing memhers-1- the conical pulley p is mounted which cooperates with a conical pulley 0, the said pulleys having their apices located at oppoa is site end a chain wheel Z in driving engagement with the chain f.

Through the walls y spindles m and m are passed which are mounted on the frame a. Cons'tructions of this type are known in the art and therefore they have not been illustrated in the drawings. The feeler d operates in the manner described in the aforesaid patent to Tandel, and it is adapted to direct compressed air taken from a container (1 through a pipe d to pipes d and d, according to the position of the edges of the fabric acting thereon, or to disconnect the pipe d from the pipes d and dflif the fabric is in correct position. The pipes d and d act respectively on piston rods '0 and w having a single piston within a casing u.

The said casing u is axially shiftable on the piston rods 42 and w and at both sides it carries a pivot bolt a engaging in the upper bifurcated end of a lever a The said lever is jointed to a pivot bolt a secured to the frame 2, and it carries a shaft u At one of its ends the said shaft carries a gear wheel or pulley u and at its opposite end a cord wheel a", a sprocket wheel or the like. The chain or cord trained on the wheel u "is trained on. guide rollers u, u and a disk u the hub u of which screws on a spindle :0 It will be understood that similar mechanism has been provided at the opposite side of the apparatl'is, which mechanism acts on a spindle w. On a shaft .2 mounted on the frame a a gear wheel a is mounted which is in' mesh with a gear wheel 2 carried by a shaft 2 mounted on the drum 2, the said gear wheels having equal diameters. Further, the shaft 2 carries a gear wheel or friction wheel a, and the shaft 2 carries a gear wheel or friction wheel 2;

In the position of the parts shown in Fig. 1, the friction wheel or gear wheel u is disconnected from the friction or gear wheels 2 and 2". If however compressed air is supplied to the pipe d or the pipe d by the mechanism controlled by the feeler d, as has been described in the aforesaid patent to Tandel, the cylinder 'u is shifted either to the right or to the left, and therefore the friction or gear wheel a mounted on the lever u is thrown into engagement with the right hand friction or gear wheel 2''. The shaft 2 is continuously rotated at uniform and high velocity from a source of power (not shown) through'th'e intermediary of a pinion from rayon, comprising a conveying device,

signature.

.2 and a disk 2 and it is coupled by means of the wheel 2 and a with the shaft 2 Therefore the shaft u is rotated in the other direction and it drives the disk u mounted on the spindle w or m through the intermediary of the chain and sprocket gearing described above, so that the corresponding walls 3/ guiding the chains are roc edoutwardly or inwardly.

The shaft .2 carries a wheel .2 connected by means of a cord gearing or a chain and sprocketgearing z with a shaft 0 The said shaft 0 operates the apparatus 0 for rolling out the edges of the fabric, which apparatus has been shown in detail in Fig. 3. As shown in the said figure the shaft 0 drives a shaft 0 mounted in a casing c by means of bevel gear wheels 0, a. Thesaid casing c and the casing carrying the feeler d are mounted on one of the walls y. The shaft 0 is provided with two cord pulleys and 0" connected by cords c and 0* with pulleys c and '0. The said pulleys are supported by means of anti-friction bearings on studs 0 and mounted on the casing 0 and disposed angularly of each other as is shown in ig. 2. The pulleys 0 and c are made integral with disks 0 and 0 disposed angularly of each other and having conical roughened faces a and a" holding the edge of the 95 fabric between the same for rolling thesame out.

I claim:

1. The herein described mechanism for automatically feeding knitted fabrics made from rayon, coinprisin a conveying device, a feeler controlling sai conveying device, an apparatus located at the intake side of the said feeler for rolling out the edges of the fabric, and an apparatus located at the delivery side of the said feeler for stretching the fabric at its edges.

2. The herein described mechanism for automatically feeding knitted fabrics made a feeler. controlling said conveying device, an apparatus located at the intake side of the said feeler for rolling out the edges of the fabric, and an-apparatu's located at the delivery side of the said feeler for stretching the fabric at its edges, said apparatus comprising a table, a rotary roller in position for clamping the edge of the fabric between the same and said table, and means for rotating said "roller at a velocity exceeding that of the feed of the fabric.

In testimony whereof I hereunto aflix my FRITZ TANDEL. 

